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Rounding heuristics for multiple product dynamic lot-sizing in the presence of queueing behavior
We present heuristics for solving a difficult nonlinear integer programming (NIP) model arising from a multi-item single machine dynamic lot-sizing problem. The heuristic obtains a local optimum for the continuous relaxation ...
Load dependent lead time modelling: a robust optimization approach
Although production planning models using nonlinear CFs have shown promising results for semiconductor wafer fabrication facilities, the lack of an effective methodology for estimating the CFs is a significant obstacle to ...
Multi-dimensional clearing functions for aggregate capacity modelling in multi-stage production systems
Nonlinear clearing functions have been proposed in the literature as metamodels to represent the behaviour of production resources that can be embedded in optimisation models for production planning. However, most clearing ...
The value of quality grading in remanufacturing under quality level uncertainty
(Taylor & Francis, 2020)
In remanufacturing, variability in quality levels of available cores (end-of-life products) has an impact on both the process cost and the process time. While previous research suggests that quality grading adds value, ...
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